Anchorage for dental bridges and plates.



S. F. GILMORE.

ANCHORAGE FOR DENTAL BRIDGES AND PLATES.

APPLIOATION FILED MAY 13, 1911.

1,022,070. Patented Apr. 2, 1912.

' fnven/Z'o'm- Steele F 67L zmon,

ATENT FFICE.

STEELE F. GILMORE, OF INDIANAPOLIS, INDIANA.

ANCHORAGE FOR DENTAL BRIDGES AND PLATES.

Specification of Letters Patent.

Application filed May 13, 1911. Serial No. 627,027.

To all whom it may concern:

Be it known that I, STEELE F. GILMORE, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain neiv and useful Improvements in Anchorage for Dental Bridges and Plates, of which the following is a specification.

This invention relates to improvements in dentistry and the object is to provide means for removably securing crowns and bridges to permit them to be taken off for any pur-' pose without the aid of a dentist and the object also is to provide a fastening clamp which can be easily adjusted by an inexperi eneed person to a tighter hold when it becomes loose by use or abuse.

I accomplished the objects of my invention by the mechanism illustrated in the accompanying drawing, in which Figure 1 represents an upper jaw showing the natural teeth gone on one side between the cuspid and last molar and a round anchor bar anchored to said cuspid and molar,

and on the other side of the jaw showing the molars gone and a bar anchored to the rear bicuspid. Figs. 2 and 3 represent the plates to be anchored by the bars shown in Fig. 1, the inner side of the plates or sides next to the gums being shown. Fig. l is a-view of the upper jaw shown in Fig. l with the artificial teeth in position. Fig. 5 is an upper jaw in which all of the bicuspids and molars of one side are gone and anchorage is provided for, as shown, with the cuspicl on the side where the teeth are gone and a bicuspid on the opposite side of the jaw. F 6 is an under side view of the plate for this job and Fig. 7 represents the job complete. Fig. 8

, ment with a round anchor bar and Fig. 10 is a section on the line 10-10 of Fig. 9, and Fig. 11 is a section on the line 11-1l of Fig. 4.

Like characters of reference indicate like parts throughout the several views of the drawing.

The tooth to be anchored=to, or teeth if more than one is practically available, is capped with gold in the usual Way as shown at 12and to this cap 12 a round metal bar 13 is securely anchored.

A removable bridge plate 14 of metal or vulcanized rubber is formed to fit the gums where the false teeth are to be worn and is provided with the proper teeth in the usual way, except that 'a channel 15 is made in its inner side to secure the bar 13, and a clamping plate 16 of resilient sheet metal, bent in the form of a split sleeve, is embedded in and securely attached to the plate let. in alinement with channel 15, so that the bar upon entering channel-15, will also enter the split sleeve. The walls of the latter are long enough to embrace more than half of the circumference of the bar and the resiliency of the arms permits them to be sprung around the bar and causes them to grasp the bar, as shown in Fig. 10, in a manner to require the application of considerable force to disengage the clamps and remove the plate. A round bar is necessary to secure a positive and reliable attachment and should the arms of the clamp become worn or spread to an. extent that its connection with the bar is loose this is-easily and quickly remedied by removing the plate and bending the arms together so they will remain normally closer to each other and thus grasp the barmore tightly.

My invention is capable of various applications to either upper or lower jaw, as the loss of particular teeth may require, the drawings showing only a few of many adaptations for purposes of illustration.

Having thus fully described my. invention what I claim as new and wish to secure by Letters Patent, is-

1. In anchorage for dental bridges, the

clamp carried by the plate to engage the bar to permit the removal of the plate therefrom at will.

In anchorage for dental bridges, the combination of a metal cap on a natural tooth, a round bar anchored to said cap, a plate having a channel to receive the bar, and a clamp of sheet metal in the form of a split sleeve having a body embedded in and securely attached to the plate in alinement with the channel whereby the bar upon entering the channel will enter the split sleeve the arms of the sleeve being resilient and embracing more than half of the circumference of the bar when introduced into the split sleeve to form a lock.

3. In anchorage -for dental bridges, the combination of a metal cap or caps on a tooth or teeth to be anchored to, a round bar Patented Apr. 2, 1912.

or bars secured to one or more of the caps In Witness whereof,- I, have hereunto set 10' on said teeth, a plate having a channel or my hand and seal at Indianapolis, Indiana, channels to receive the. bar or bars, and a this fourth day of May, A. D. one thousand clamp foir Ieach channel embedded in'the nine hundred and eleven.

late an aving resilient. arms to s read 2nd receive one of the bars between its arms STEELE GILMORE and to close against the bar and embrace Witnesses: over one-half of its circumference to form a F. W. WOERNER, lock. L. B, WOERNER. 

